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pacman
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James Rosten <seinfeld90@gmail.com> 

* _alpm_remove_commit refactoring
* clean up/fixes by Dan McGee <dpmcgee@gmail.com>
This commit is contained in:
Aaron Griffin 2007-01-17 04:47:19 +00:00
parent 726e90dc2c
commit 803f92b6a6
1 changed files with 77 additions and 80 deletions
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157
lib/libalpm/remove.c
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@ -37,7 +37,6 @@
#include <fcntl.h>
#include <string.h>
#include <limits.h>
#include <zlib.h>
#include <libintl.h>
/* pacman */
#include "list.h"
@ -156,12 +155,86 @@ static int str_cmp(const void *s1, const void *s2)
return(strcmp(s1, s2));
}
/* Helper function for iterating through a package's file and deleting them
* Used by _alpm_remove_commit
*/
static void unlink_file(pmpkg_t *info, pmlist_t *lp, pmlist_t *targ,
pmtrans_t *trans, int filenum, int *position)
{
struct stat buf;
int nb = 0;
double percent = 0.0;
char *file = lp->data;
char line[PATH_MAX+1];
char *checksum = _alpm_needbackup(file, info->backup);
if ( *position != 0 ) {
percent = (double)*position / filenum;
} if ( checksum ) {
nb = 1;
FREE(checksum);
} if ( !nb && trans->type == PM_TRANS_TYPE_UPGRADE ) {
/* check noupgrade */
if ( _alpm_list_is_strin(file, handle->noupgrade) ) {
nb = 1;
}
}
snprintf(line, PATH_MAX, "%s%s", handle->root, file);
if ( lstat(line, &buf) ) {
_alpm_log(PM_LOG_DEBUG, _("file %s does not exist"), file);
return;
}
if ( S_ISDIR(buf.st_mode) ) {
if ( rmdir(line) ) {
/* this is okay, other pakcages are probably using it (like /usr) */
_alpm_log(PM_LOG_DEBUG, _("keeping directory %s"), file);
} else {
_alpm_log(PM_LOG_DEBUG, _("removing directory %s"), file);
}
} else {
/* check the "skip list" before removing the file.
* see the big comment block in db_find_conflicts() for an
* explanation. */
int skipit = 0;
pmlist_t *j;
for ( j = trans->skiplist; j; j = j->next ) {
if ( !strcmp(file, (char*)j->data) ) {
skipit = 1;
}
}
if ( skipit ) {
_alpm_log(PM_LOG_FLOW2, _("skipping removal of %s as it has moved to another package"),
file);
} else {
/* if the file is flagged, back it up to .pacsave */
if ( nb ) {
if ( !(trans->type == PM_TRANS_TYPE_UPGRADE) ) {
/* if it was an upgrade, the file would be left alone because
* pacman_add() would handle it */
if ( !(trans->type & PM_TRANS_FLAG_NOSAVE) ) {
char newpath[PATH_MAX];
snprintf(newpath, PATH_MAX, "%s.pacsave", line);
rename(line, newpath);
_alpm_log(PM_LOG_WARNING, _("%s saved as %s"), file);
}
}
} else {
_alpm_log(PM_LOG_FLOW2, _("unlinking %s"), file);
int list_count = _alpm_list_count(trans->packages); /* this way we don't have to call _alpm_list_count twice during PROGRESS */
PROGRESS(trans, PM_TRANS_PROGRESS_REMOVE_START, info->name, (double)(percent * 100), list_count, (list_count - _alpm_list_count(targ) + 1));
++(*position);
}
if ( unlink(file) ) {
_alpm_log(PM_LOG_ERROR, _("cannot remove file %s"), file);
}
}
}
}
int _alpm_remove_commit(pmtrans_t *trans, pmdb_t *db)
{
pmpkg_t *info;
struct stat buf;
pmlist_t *targ, *lp;
char line[PATH_MAX+1];
ASSERT(db != NULL, RET_ERR(PM_ERR_DB_NULL, -1));
ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
@ -192,89 +265,13 @@ int _alpm_remove_commit(pmtrans_t *trans, pmdb_t *db)
/* iterate through the list backwards, unlinking files */
for(lp = _alpm_list_last(info->files); lp; lp = lp->prev) {
int nb = 0;
double percent = 0.0;
char *file = lp->data;
char *md5 =_alpm_needbackup(file, info->backup);
char *sha1 =_alpm_needbackup(file, info->backup);
if (position != 0) {
percent = (double)position / filenum;
}
if(md5 && sha1) {
nb = 1;
FREE(md5);
FREE(sha1);
}
if(!nb && trans->type == PM_TRANS_TYPE_UPGRADE) {
/* check noupgrade */
if(_alpm_list_is_strin(file, handle->noupgrade)) {
nb = 1;
}
}
snprintf(line, PATH_MAX, "%s%s", handle->root, file);
if(lstat(line, &buf)) {
_alpm_log(PM_LOG_DEBUG, _("file %s does not exist"), file);
continue;
}
if(S_ISDIR(buf.st_mode)) {
if(rmdir(line)) {
/* this is okay, other packages are probably using it. */
_alpm_log(PM_LOG_DEBUG, _("keeping directory %s"), file);
} else {
_alpm_log(PM_LOG_FLOW2, _("removing directory %s"), file);
}
} else {
/* check the "skip list" before removing the file.
* see the big comment block in db_find_conflicts() for an
* explanation. */
int skipit = 0;
pmlist_t *j;
for(j = trans->skiplist; j; j = j->next) {
if(!strcmp(file, (char*)j->data)) {
skipit = 1;
}
}
if(skipit) {
_alpm_log(PM_LOG_FLOW2, _("skipping removal of %s as it has moved to another package"),
file);
} else {
/* if the file is flagged, back it up to .pacsave */
if(nb) {
if(trans->type == PM_TRANS_TYPE_UPGRADE) {
/* we're upgrading so just leave the file as is. pacman_add() will handle it */
} else {
if(!(trans->flags & PM_TRANS_FLAG_NOSAVE)) {
char newpath[PATH_MAX];
snprintf(newpath, PATH_MAX, "%s.pacsave", line);
rename(line, newpath);
_alpm_log(PM_LOG_WARNING, _("%s saved as %s"), file, newpath);
alpm_logaction(_("%s saved as %s"), line, newpath);
} else {
_alpm_log(PM_LOG_FLOW2, _("unlinking %s"), file);
if(unlink(line)) {
_alpm_log(PM_LOG_ERROR, _("cannot remove file %s"), file);
}
}
}
} else {
_alpm_log(PM_LOG_FLOW2, _("unlinking %s"), file);
/* Need at here because we count only real unlinked files ? */
PROGRESS(trans, PM_TRANS_PROGRESS_REMOVE_START, info->name, (double)(percent * 100), _alpm_list_count(trans->packages), (_alpm_list_count(trans->packages) - _alpm_list_count(targ) +1));
position++;
if(unlink(line)) {
_alpm_log(PM_LOG_ERROR, _("cannot remove file %s"), file);
}
}
}
}
unlink_file(info, lp, targ, trans, filenum, &position);
}
}
if(trans->type != PM_TRANS_TYPE_UPGRADE) {
/* run the post-remove script if it exists */
if(info->scriptlet && !(trans->flags & PM_TRANS_FLAG_NOSCRIPTLET)) {
char pm_install[PATH_MAX];
snprintf(pm_install, PATH_MAX, "%s/%s-%s/install", db->path, info->name, info->version);
_alpm_runscriptlet(handle->root, pm_install, "post_remove", info->version, NULL, trans);
}